add support for experimental private abstract references syntax - closes #291

test/fixtures/generation/types/PrivateDeclaration/actual.js

@@ -0,0 +1,7 @@
+private A;
+private B, C;
+
+class Test {
+  private A;
+  private B, C;
+}

test/fixtures/generation/types/PrivateDeclaration/expected.js

@@ -0,0 +1,7 @@
+private A;
+private B, C;
+
+class Test {
+  private A;
+  private B, C;
+}

test/fixtures/transformation/es7-abstract-references/private/actual.js

@@ -0,0 +1,12 @@
+private A;
+private B, C;
+
+class D {
+  private E;
+  private F, G;
+}
+
+var H = class {
+  private I;
+  private J, K;
+};

test/fixtures/transformation/es7-abstract-references/private/expected.js

@@ -0,0 +1,19 @@
+"use strict";
+
+var A = new WeakMap();
+var B = new WeakMap(), C = new WeakMap();
+(function () {
+  var F = new WeakMap(), G = new WeakMap();
+  var E = new WeakMap();
+  var D = function D() {};
+
+  return D;
+})()
+
+var H = (function () {
+  var J = new WeakMap(), K = new WeakMap();
+  var I = new WeakMap();
+  var _class = function () {};
+
+  return _class;
+})();